Repeated Annual Paper Mill and Alkaline Residuals Application Affects Soil Metal Fractions

Gagnon, Bernard; Robichaud, Annie; Ziadi, Noura; Karam, Antoine

doi:10.2134/jeq2013.03.0080

Cited by 4 publications

(1 citation statement)

References 39 publications

(53 reference statements)

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“…A number of 'waste products' are available that neutralize acidity: sugar factory lime, basic slag, wood ash, coal combustion products such as fly ash and bottom ash, calcium humates and fulvates from oxidized brown coal and by-products of the paper and pulp industry (e.g. Gagnon et al, 2014). The NVs of some of these, compared with lime-based products, are shown in Table 4.…”

Section: Other Acid-neutralizing Materialsmentioning

confidence: 99%

Soil acidification and the importance of liming agricultural soils with particular reference to the United Kingdom

Goulding

2016

Soil Use and Management

652

347

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Soil acidification is caused by a number of factors including acidic precipitation and the deposition from the atmosphere of acidifying gases or particles, such as sulphur dioxide, ammonia and nitric acid. The most important causes of soil acidification on agricultural land, however, are the application of ammonium‐based fertilizers and urea, elemental S fertilizer and the growth of legumes. Acidification causes the loss of base cations, an increase in aluminium saturation and a decline in crop yields; severe acidification can cause nonreversible clay mineral dissolution and a reduction in cation exchange capacity, accompanied by structural deterioration. Soil acidity is ameliorated by applying lime or other acid‐neutralizing materials. ‘Liming’ also reduces N2O emissions, but this is more than offset by CO 2 emissions from the lime as it neutralizes acidity. Because crop plants vary in their tolerance to acidity and plant nutrients have different optimal pH ranges, target soil pH values in the UK are set at 6.5 (5.8 in peaty soils) for cropped land and 6.0 (5.3 in peaty soils) for grassland. Agricultural lime products can be sold as ‘EC Fertiliser Liming Materials’ but, although vital for soil quality and agricultural production, liming tends to be strongly influenced by the economics of farming. Consequently, much less lime is being applied in the UK than required, and many arable and grassland soils are below optimum pH.

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Section: Other Acid-neutralizing Materialsmentioning

confidence: 99%

Soil acidification and the importance of liming agricultural soils with particular reference to the United Kingdom

Goulding

2016

Soil Use and Management

652

347

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Soil and plant cations as affected by application of wood ash, biochar, and papermill biosolids

Manirakiza,

Gagnon,

Ziadi

2024

Agronomy Journal

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Recycling woody biomass for application to croplands is one option to divert materials from landfills and simultaneously improve degraded soil properties. Considering the diversity of materials that vary widely in characteristics, an understanding of the comparative effects of a single or combined application of these byproducts is missing with regards to soil C accumulation and availability of base and metallic cations. A field study was conducted in Québec City, QC, Canada, to assess the effects relative to untreated control of wood ash (10 and 20 Mg dry wt. ha−1), pine biochar (10 Mg dry wt. ha−1), papermill biosolids (12 Mg PB dry wt. ha−1), and a combination of wood ash and PB on soil C, pH, and cations in a circumneutral loamy soil. The site was cropped to a corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotation. All materials were applied before corn planting and the effects of treatment were followed over two growing seasons. Applying wood ash resulted in the statistically largest increases (p < 0.01) in soil pH, percentage base saturation, and Mehlich‐3 K, Ca, Mg, Zn, and Cd. Wood ash also increased K concentration in straw and total K accumulation for both plants, but its effect on plant metallic cations was limited. With a single application, PB only increased Mehlich‐3 Ca with no further effect when combined with wood ash, while pine biochar was limited to sequester soil C. Therefore, this study indicated that wood ash could benefit a corn–soybean rotation by enhancing soil quality and crop yield.

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Visible near infrared reflectance spectroscopy prediction of soil heavy metal concentrations in paper mill biosolid- and liming by-product-amended agricultural soils

et al. 2017

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Repeated Annual Paper Mill and Alkaline Residuals Application Affects Soil Metal Fractions

Cited by 4 publications

References 39 publications

Soil acidification and the importance of liming agricultural soils with particular reference to the United Kingdom

Soil acidification and the importance of liming agricultural soils with particular reference to the United Kingdom

Soil and plant cations as affected by application of wood ash, biochar, and papermill biosolids

Visible near infrared reflectance spectroscopy prediction of soil heavy metal concentrations in paper mill biosolid- and liming by-product-amended agricultural soils

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